The Java.util.concurrent.atomic.AtomicLong.addandget() is an inbuilt method in java which adds the value which is passed in the parameter of the function to the previous value and returns the new updated value which is of data-type long.
Syntax:
public final long addAndGet(long val)
Parameters: The function accepts a single mandatory parameter val which specifies the value to be added.
Return value: The function returns the value after addition is done.
Below programs illustrate the above method:
Program 1:
// Java program that demonstrates// the addandget() function  import java.util.concurrent.atomic.AtomicLong;  public class GFG {    public static void main(String args[])    {          // Initially value as 0        AtomicLong val = new AtomicLong();          // Update the value        long c = val.addAndGet(6);          // Prints the updated value        System.out.println("Updated value: "                           + c);    }} |
Output:
Updated value: 6
Program 2:
// Java program that demonstrates// the addandget() function  import java.util.concurrent.atomic.AtomicLong;  public class GFG {    public static void main(String args[])    {          // Initially value as 18        AtomicLong val = new AtomicLong(18);          // Prints the updated value        System.out.println("Previous value: "                           + val);          // adds the value to 18        val.addAndGet(6);          // Prints the updated value        System.out.println("Updated value: "                           + val);    }} |
Output:
Previous value: 18 Updated value: 24
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